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EUROPIUM

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Originally appearing in Volume V09, Page 953 of the 1911 Encyclopedia Britannica.
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EUROPIUM , a metallic chemical See also:

element, See also:symbol Eu, atomic See also:weight 152.0 (0=16). The See also:oxide Eu O3 occurs in very small quantity in the minerals of the rare earths, and was first obtained in 1896 by E, A. Demarcay from Lecoq de Boisbaudran's samarium; G. Urbain and H. Lacombe in 1904 obtained the pure salts by fractional See also:crystallization of the nitric See also:acid See also:solution with See also:magnesium nitrate in the presence of See also:bismuth nitrate. The salts have a faint See also:pink See also:colour, and show a faint absorption spectrum; the spark spectrum is brilliant and well characterized.

End of Article: EUROPIUM

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